to submitters or post creepy comments.
Unsolicited sexual overtures can be disturbing.
If you get any such private messages and would like to report the offender, you should message the mods of /r/reddit.com (the admins) with a link to the offending message--harassment is against the sitewide rules.

Replying with something nasty instead of reporting just makes more work for the mods, who will be more inclined to ban both of you instead of just the aggressor.
Spammers are posting for attention too; if you don't want to see the same picture dozens of times, don't comment and just report the post instead.

I never had a boyfriend until I was 16 either. It was mostly pure luck that I got one too. Trust me, you are quite pretty and cute and have nothing to worry about. You can be confident that if you were to make the first move on a guy, he should have no reason to say no based on appearance alone.